Improvement in gas-burners



S. C. SALISBURY.

GAS-BURNER.

Patented May 9, 1876 UNITED STATES PATENT OFFICEi SILAS O. SALISBURY, OF NEW YORK, N. Y.

IMPRovEMET lNeAs-BURNERS.

Specification formiug part of Letters Patent No. 177,285, dated May 9, 1876; application filed April 13, 1876.

To all wltom it may colwer'n Be it known. that I, SILAs O. SALISBURY; of New York, in the county of New York and State of New York, have invented a new and useful Improvement in Gas-Burners; and I do hereby declare that the following isv a full and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The object of my invention is the production of a gas-burner, designed more particularly for use in street-lamps and public grounds, which Will prevent the blowing of the gas, when the pressure is increased, and regulate the fiow so as to deliver the same in a steady stream, thereby iusuring the consumptionof all the gas, increasing the brilliancy of the light, and making' a great saving ov'er burners as heretofore constructed..

My invention therein consists, principally, in the combination, with a gasburner, of a peculiar valve; and, further, in the combination and construction 'of the several parts composing my burner, all as more fully here; inafter explained.

To enable othersskillrd in the art to manufacture my device, I describe the same in connection with the drawings, in which- Figure 1 is a side elevationof the burner, Fig. 2, a central Vertical section of the same; and Fig. 3, a separate viewof the lower part of the burner, a part of the valve being broken away to show the course of the gas.

Like letters denote corresponding parts in each figure. A

The shell of the buruer is constructed in two parts, upper and lower, AA'. The lower part A' has the ordinary open screw-threaded end a to be attached-to the end of the proper pipe. This lower part is provided with au outwardly-projecting ring, forming a shoulder, b, labove which the part is' screw-threaded, as shown by' bl. The inner side of this shoulder forms an expansion -chamber, bz. The lower end of the upper part A of the 'burner engages with the screw-thread bl, a small packing-ring, o, of paper or other ma-l terial, being placed on the shoulderbto make a gas-tight joint. Above'the soreW-thread b1 the part A' is contracted at d, and closes the hollow interior. One or more holes, d', are made through the top of the contraeted end d. Over this contracted end d loosely rests a conical-shaped cap-Valve, B. This cap is supported and guided in its Vertical movement by a Wire, e, 'which is secured at its lower end to the top of the contracted end d, projects up through the cap B, and has its upper` end e', above such cap, bent over to limit its movement. The cap-valve is provided with a number of holes, f, in its sides. The upper end of the part A is 'tipped in any ordinary manner, it being shown as provided with-alava tip, g. Below the tip, inside the part A, is placed a wire-gauze diaphragm, h, to prevent dust from entering and clogging up the cap-valve. The part A,

a short distance above the screw-threaded lower end, and nearly opposite the holes f lu the valve when in position, is contracted to form on its inner side a shoulder, i, Iessening the bore of the part A at that point. `The valve in its extreme upward movement nearly closes this space.

The operation of my device is as follows: The burner being placed on a street-lamp, for instance,l 'the gas is turned on, and flows freely through the holes d f, the Wire gauze,

and out the burner. When the pressure is increased the valve B is raised, and gradually closes the extent of the space between the valve and the shonlder thus presenting the gas in a steady stream to the burner, which result is assisted by the eXpansion-chamber b. By these means the blowing of the gas under heavy pressure, and the consequent loss of unconsumed gas, is entirely avoided, and the brilliancy' of the light largely increased.

Having thus fully described my burner, and explained some of its advantages, what I claim as new therein, and'desire to secure by Letters Patent, is

The gas-burner described, having in cornbination the perforated valve B, the wire e with its free end serving as a stop, the expa'nsion-chamber b2, and the Wire gauze h, substantially as and for the purposes described.

This specification sigued and witnessed this 5th day of April, 1876.

- SILAS O. SALISBURY. Witnesses: i

WALTER MoRRIs,

- M. K. SALIsBURY. 

